Chinese Numbers - Erik E. Peterson
Convert arabic numerals up to 1 billion into Chinese numbers, or show the value of a Chinese number (type or paste in a number in Chinese and click "Show English." With, in addition, A Brief Description of the Chinese Number System, and links to related
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Class Champ multiplication & division
Software intended to help children learn the times table by heart using Pop Times Table songs; show how multiplication works by displaying the question graphically; and quicken the child's ability to recall answers and allow the child to practice questions.
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Continental Mathematics League (CML)
Information about the Continental Math League, including samples and solutions from CMLs for grades two and three, Pythagorean for grades 4-9, Euclidean for grades 4-9, and calculus. Also, order Best of CML books containing questions, and obtain the competition's
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Cool School Tools - Tim Fahlberg
Shockwave whiteboard movies on algebra, geometry, probability, statistics, the mathematics of finance, and more. A whiteboard movie (WM) is a multimedia screen recording of writing on an electronic whiteboard (real or virtual) with or without voice and/or
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Co-op City - Peter Barricelli
A classroom project involving the construction of scale models of buildings and towns. In addition to teaching ratio and proportion, the process introduces the students to blueprint and CAD (Computer Aided Design) programs.
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Daily Squares - Steven Pomeroy
Arrange the digits in the 4×4 grid so that each column, row, and diagonal adds up to 34. Visit every day for a new magic square puzzle; check the archive for past challenges. For more "cool math tricks, math games, and interesting mathematical concepts,"
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The Definitive Four Fours Answer Key - David A. Wheeler
From 0 up to 40,000, whole number mathematical expressions that use only common mathematical symbols and exactly four 4s. Wheeler offers his solutions in three different formats: an abbreviated list of answers; a text file of results, mathematical expressions,
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Digitz: Multiplication Math Games - Fred Lusignan
A portable electronic multiplication game that reinforces these multiplication concepts: multiples, multiplication facts, factors, factor pairs, and sequencing. Players race against a clock, and the game handles single or multiple players. Order online
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Dollar Bill's Adventures with Money - BDi Software
Software for Mac or PC created to teach real-world problem-solving skills to students in grades 1-5. A freeware demo of the CD-ROM includes up to 12 activities to download, or play online using Shockwave. Activities for grades 1-2 focus on coin identification,
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Domebook - Tom Camilli
Cardboard and transparent plastic geodesic domes built by children. Students start by constructing paper models, then apply scale factors to construct domes of any size using cardboard or wooden dowels and plastic sheeting. See pictures of classroom projects;
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The DOW Bee Mental Math Project - Ronald H. Scott
"Who would like to know the day of the week they were born on?" The Day-of-the-Week (DOW) Bee promotes the mental conversion of calendar dates into their weekday equivalents, requiring only a "reasonable mastery of simple division, addition, and subtraction."
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Dr Lamin Tutor Books
Free programs on CD-ROM, produced by Dr S.M Hajsadr (you must pay postage and
packaging if you find them useful). Essential Maths is the first in a series of Tutor Books that aim to make learning mathematics easy and consistently planned. Topics include:
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Dynamic Mathematics Visualization for Young Learners
Sketchpad in Grades 3-8 - a working conference, held at the University of Illinois at Chicago in February, 2003. Researchers, curriculum developers, and educators began developing a curriculum and software structure around The Geometer's Sketchpad technology
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Elementary Problem of the Week - Math Forum
A project designed to challenge elementary students with non-routine problems and to encourage them to verbalize their solutions. From 1995 to 2002, solutions submitted from students for the Elementary Problem of the Week were answered by Visiting Math
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Emaths.Info - Vinod Sebastian
Math tools, formulas, tutorials, videos, tables, and "curios," such as the unusual properties of 153, 1729, and 2519. See in particular Emaths' interactive games, which include the N queens problem, Towers of Hanoi, and partition magic, which finds a
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